47729673 has 6 divisors (see below), whose sum is σ = 68942874. Its totient is φ = 31819776.

The previous prime is 47729641. The next prime is 47729711. The reversal of 47729673 is 37692774.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 44997264 + 2732409 = 6708^2 + 1653^2 .

It is not a de Polignac number, because 47729673 - 2⁵ = 47729641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47729603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2651640 + ... + 2651657.

It is an arithmetic number, because the mean of its divisors is an integer number (11490479).

Almost surely, 2^47729673 is an apocalyptic number.

It is an amenable number.

47729673 is a deficient number, since it is larger than the sum of its proper divisors (21213201).

47729673 is a wasteful number, since it uses less digits than its factorization.

47729673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5303303 (or 5303300 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 47729673 is about 6908.6665138795. Note that the first 3 decimals coincide. The cubic root of 47729673 is about 362.7405882866.

The spelling of 47729673 in words is "forty-seven million, seven hundred twenty-nine thousand, six hundred seventy-three".